ASTM A213/A213M covers seamless ferritic and austenitic steel tubes for boiler, superheater and heat-exchanger service.
The standard includes multiple ferritic alloy-steel, ferritic stainless-steel and austenitic stainless-steel grades. Chemical composition, mechanical properties, heat treatment and service characteristics vary according to the specified grade.
Specified Standard Edition: ASTM A213/A213M-25
Standard Title: Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A213 covers a broad range of material grades. Commonly specified grades include the following.
| Grade | Material Description |
|---|---|
| T5 | Chromium-molybdenum alloy steel |
| T9 | Chromium-molybdenum alloy steel |
| T11 | Chromium-molybdenum alloy steel |
| T12 | Chromium-molybdenum alloy steel |
| T22 | Chromium-molybdenum alloy steel |
| T91 | Modified 9Cr-1Mo alloy steel |
| T92 | Advanced ferritic alloy steel |
| Grade | Corresponding H Grade |
|---|---|
| TP304 | TP304H |
| TP316 | TP316H |
| TP321 | TP321H |
| TP347 | TP347H |
Other ASTM A213 grades can be reviewed according to the project specification.
Grades containing the H designation have requirements different from the corresponding non-H grades and are intended to provide higher creep-rupture strength.
Grade selection should follow the equipment design code, operating conditions and approved project material specification.
ASTM A213/A213M usually covers the following dimensions:
| Parameter | Size Range |
|---|---|
| Inside Diameter | From 1/8 in. [3.2 mm] |
| Outside Diameter | Up to 5 in. [127 mm] |
| Wall Thickness | 0.015–0.500 in. [0.4–12.7 mm] |
Wall thickness may be specified as:
Other tube diameters may be supplied provided the tubes comply with the applicable requirements of ASTM A213/A213M.
ASTM A213 covers several alloy systems rather than one fixed chemical composition.
Chemical composition and mechanical properties shall be specified and verified according to the exact ASTM A213 grade ordered.
ASTM A213/A213M establishes grade-specific heat-treatment requirements.
Ferritic Alloy & Ferritic Stainless-Steel Tubes
Tubes are supplied with the heat treatment required for the applicable grade.
Austenitic Stainless-Steel Tubes
Tubes are supplied in the specified heat-treated condition. Depending on the grade and manufacturing condition, solution treatment and rapid cooling requirements apply.
Heat treatment is performed separately from heating used for hot forming.
Because ASTM A213 contains a large number of material grades, the required heat-treatment temperature and condition should be confirmed according to the exact grade specified in the purchase order.
Inspection and testing are carried out according to ASTM A213/A213M and the purchase specification.
Typical requirements include:
Each tube is subject to the applicable hydrostatic or nondestructive electric testing requirements.
Additional inspection requirements, including UT or ET as specified, can be included according to the project specification.
Mill Test Certificates and applicable inspection records can be supplied with the order. Third-party inspection can be arranged upon request.
| Parameter | Capability |
|---|---|
| Manufacturing | Cold Drawn / Cold Rolled |
| Outside Diameter | 6–114 mm |
| Wall Thickness | 0.8–25 mm |
| Length | Up to 40 m |
| Heat Treatment | According to the specified ASTM A213 grade |
| Inspection | Hydrostatic / UT / ET as specified |
| Documentation | MTC / EN 10204 documentation / TPI as required |
| Third-Party Inspection | Available upon request |
| Custom Sizes | Subject to grade and technical review |
| MOQ | According to grade, size and production requirements |
ASTM standard scope and FYN manufacturing capability are stated separately.
Grade and size availability are confirmed according to the exact material grade, outside diameter, wall thickness, length, heat treatment and inspection requirements.
ASTM A213 seamless alloy-steel tubes are used in boiler, superheater and heat-exchanger equipment where ferritic or austenitic alloy-steel tubing is specified.
For pressure-containing heating surfaces in power and industrial boiler systems.
For steam-heating sections requiring the applicable ASTM A213 ferritic or austenitic material grade.
For heat-transfer equipment where seamless ASTM A213 alloy or stainless-steel tubing is specified.
Selected ASTM A213 grades are used for boiler pressure parts operating under elevated-temperature conditions.
For replacement tube bundles where the equipment or project specification calls for ASTM A213 material.
The appropriate grade should be selected according to the applicable design code, design metal temperature, pressure, steam conditions, corrosion environment and project material specification.
Available documentation can include:
Required documentation should be specified during the RFQ stage.
Typical export packing includes:
Stainless-steel grades can be packed with additional surface and contamination protection according to project requirements.
Long-length tubes may require special packing and transportation arrangements.
Production lead time depends on grade, dimensions, quantity, heat treatment, testing and inspection requirements.
For quotation, please specify:
ASTM A213/A213M + Grade + OD × Wall Thickness × Length + Quantity
The exact grade is essential for ASTM A213 enquiries because chemical composition, mechanical properties, heat treatment and service characteristics vary significantly between grades.
Please indicate whether the wall thickness is specified on a minimum-wall or average-wall basis.
| Required Information | Details |
|---|---|
| Standard | ASTM A213/A213M |
| Material Grade | Exact ASTM A213 grade required |
| Standard Edition | Required ASTM edition, if specified |
| Outside Diameter | Required outside diameter |
| Wall Thickness | Required wall thickness |
| Wall Basis | Minimum wall or average wall |
| Length | Required tube length |
| Quantity | Required order quantity |
| Dimensional Tolerances | If applicable |
| Heat Treatment | Required heat-treatment condition, if specified |
| Testing | Hydrostatic / NDT requirements |
| Documentation | MTC / EN 10204 requirements |
| Third-Party Inspection | If required |
| Delivery | Delivery destination |
For an accurate quotation, please send your required material grade, outside diameter, wall thickness, wall basis, length and quantity.
For project enquiries, attach your tube list, drawing or technical specification for technical review, together with heat treatment, NDT, documentation and delivery requirements.
